Which direction best approximates the direction of




















Is it possible for an object at rest to have only a single force acting on it? An object of mass, m, is initially at rest. After a force of magnitude, F, acts on it for a time, t, the object has a speed, v. Suppose the mass of the object is doubled, and the magnitude of the force acting on it is quadrupled.

How long does it take for the object to accelerate from rest to the same speed as before? A driver wearing a seatbelt decelerates at roughly the same rate as the car itself. Since modern cars have a "crumple zone" built into the front of the car, the car will decelerate over a distance of roughly 1. Ch 4 Difficulty: 4 Time: 5 minutes. The basketball goal is 3 meters high and the ball follows a parabolic path until it goes through the hoop.

If you are 10 meters from the goal, what is the magnitude of the initial velocity? Straight up. Which direction best approximates the direction of the acceleration when the object is at position 1? Which direction best approximates the direction of the acceleration when the object is at position 2? Which direction best approximates the direction of the acceleration when the object is at position 3?

C and E. E and F. A and F. C and D. B and D. Which two vectors, when added, will have the largest x component? Which two vectors, when added, will have the largest y component?

Which two vectors, when subtracted will have the largest magnitude? A skateboarder on a ramp is accelerated by a nonzero net force. For each of the following statements, state whether it is always a true, b never true, or c sometimes true. Since a bucket of water is "weightless" in space, would it hurt to kick the bucket? Log In. What scientific concept do you need to know in order to solve this problem? Our tutors have indicated that to solve this problem you will need to apply the Centripetal Forces concept.

You can view video lessons to learn Centripetal Forces. Or if you need more Centripetal Forces practice, you can also practice Centripetal Forces practice problems. If you forgot your password, you can reset it. Join thousands of students and gain free access to 55 hours of Physics videos that follow the topics your textbook covers. Analytical Chemistry Video Lessons. Cell Biology Video Lessons. Genetics Video Lessons. Biochemistry Video Lessons.

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